Added code

modules/config/__init__.py

@@ -0,0 +1 @@
+from .config import charset

modules/config/config.py

@@ -0,0 +1,11 @@
+import json
+
+try:
+    config = json.load(open('config.json', encoding='utf-8'))
+except:
+    config = {
+        "charset": "abcdefghijklmnopqrstuvwxyz"
+    }
+    json.dump(config, open('config.json', 'w', encoding='utf-8'), indent=4)
+
+charset = ''.join(sorted(list(set(' ' + config['charset']))))